agenttesla | 19ea5f9b3b966735e47889a09ef810a56fcf57016aa5a5acd4f0448be9faf990

General

Target

pedido urgente pdf.exe
Size

447KB
MD5

4112533aec736c3972f28ed1247be1df
SHA1

c67574ba3a5b36a3cf29ef3726ec031d55bd1c6c
SHA256

3b090c8b614dc1e938d974aec7fd3ecbc54783b4c7ad33493dcd6a776c649c85
SHA512

3a7ced0c397344be89cdc48b086e44cd560e866846c39dfe8b7f98bb875e09135f3b0944be3fca20fea98b20272bf56f56f66f3f1cd8a88d337543f65fc9aca7

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.capeqlc.net
Port:
587
Username:
[email protected]
Password:
UDzMprB6

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1984-57-0x0000000000550000-0x0000000000558000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1452-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1452-65-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1452-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1452-67-0x000000000044A9CE-mapping.dmp	family_agenttesla
behavioral1/memory/1452-69-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1452-71-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1984-58-0x00000000057E0000-0x0000000005836000-memory.dmp	rezer0

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

pedido urgente pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pedido urgente pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pedido urgente pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pedido urgente pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

pedido urgente pdf.exe

description pid process target process

PID 1984 set thread context of 1452 1984 pedido urgente pdf.exe pedido urgente pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

964 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

pedido urgente pdf.exe

pid process

1452 pedido urgente pdf.exe
1452 pedido urgente pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

pedido urgente pdf.exe

description pid process

Token: SeDebugPrivilege 1452 pedido urgente pdf.exe

description	pid	process	target process
PID 1984 set thread context of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe

pid	process
964	schtasks.exe

pid	process
1452	pedido urgente pdf.exe
1452	pedido urgente pdf.exe

description	pid	process
Token: SeDebugPrivilege	1452	pedido urgente pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

pedido urgente pdf.exepedido urgente pdf.exe

description	pid	process	target process
PID 1984 wrote to memory of 964	1984	pedido urgente pdf.exe	schtasks.exe
PID 1984 wrote to memory of 964	1984	pedido urgente pdf.exe	schtasks.exe
PID 1984 wrote to memory of 964	1984	pedido urgente pdf.exe	schtasks.exe
PID 1984 wrote to memory of 964	1984	pedido urgente pdf.exe	schtasks.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1984 wrote to memory of 1452	1984	pedido urgente pdf.exe	pedido urgente pdf.exe
PID 1452 wrote to memory of 588	1452	pedido urgente pdf.exe	netsh.exe
PID 1452 wrote to memory of 588	1452	pedido urgente pdf.exe	netsh.exe
PID 1452 wrote to memory of 588	1452	pedido urgente pdf.exe	netsh.exe
PID 1452 wrote to memory of 588	1452	pedido urgente pdf.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

pedido urgente pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pedido urgente pdf.exe

outlook_win_path 1 IoCs

Processes:

pedido urgente pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	pedido urgente pdf.exe

C:\Users\Admin\AppData\Local\Temp\pedido urgente pdf.exe
"C:\Users\Admin\AppData\Local\Temp\pedido urgente pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\croBaAOTAW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp15F2.tmp"
2⤵
- Creates scheduled task(s)
PID:964

C:\Users\Admin\AppData\Local\Temp\pedido urgente pdf.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1452

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:588

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp15F2.tmp
Filesize
1KB

MD5
b06604883ca99dd5976f9019200edd06

SHA1
685bf98b81e72a5384824a0ac230199b880babac

SHA256
178b5a3716b2539338045f8a5342ea6559a00021b5d854cf820f0292542611d8

SHA512
b310dab97b649d1fe3f81543cd93d53362ef662bbe2bbe5585bbd173b5829c626d87dc32e27f740419a7396a6bbf83e76c9f415703756d5ebd4f5cf02b3ea43b

Download Submit
memory/588-73-0x0000000000000000-mapping.dmp

Download
memory/964-59-0x0000000000000000-mapping.dmp

Download
memory/1452-67-0x000000000044A9CE-mapping.dmp

Download
memory/1452-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1452-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1452-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1452-65-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1452-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1452-69-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1452-71-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1984-58-0x00000000057E0000-0x0000000005836000-memory.dmp

Filesize
344KB

Download
memory/1984-57-0x0000000000550000-0x0000000000558000-memory.dmp

Filesize
32KB

Download
memory/1984-56-0x00000000752D1000-0x00000000752D3000-memory.dmp

Filesize
8KB

Download
memory/1984-54-0x0000000000120000-0x0000000000196000-memory.dmp

Filesize
472KB

Download
memory/1984-55-0x0000000001E50000-0x0000000001EAC000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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